Internal breaker for oilfield fluids

Details Internal breaker for oilfield fluids Internal breaker for oilfield fluids

2007-10-30

2007-10-30

Suchfield, George (Department: 3676)

Wells

Processes

Chemical inter-reaction of two or more introduced materials

C166S305100, C166S308200, C507S201000, C507S209000, C507S265000, C507S921000

Reexamination Certificate

active

11532559

ABSTRACT:
Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, and proteins and cells release breakers, due to a triggering mechanism that may be, for example, a change in temperature, pH, or salinity.

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